#include <func.h>
void sigfunc(int signum)
{
    printf("before sleep %d is here\n",signum);
    sleep(3);//观察信号处理函数的打断情况
    printf("after sleep %d is here\n",signum);
}
int main(int argc,char *argv[])
{
    signal(SIGINT,sigfunc);
    signal(SIGQUIT,sigfunc);
    while(1)//使进程一直处在运行状态，这样才能接收信号
        sleep(1);
    return 0;
}

